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larisa86 [58]
3 years ago
10

Solve the following equations 63= 12x -21

Mathematics
2 answers:
tankabanditka [31]3 years ago
7 0

Answer:

X=7

take the -21 to the other side of the equation, when you do this it goes from a negative to a positive so we now have 63+21=12x

if we add 63 and 12 we get 84 decide by 12 because we have 12x and we get 7

alexgriva [62]3 years ago
5 0
X=7 i hope this helped
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Burka [1]

Answer:

<h2><u><em>y = 70°</em></u></h2>

Step-by-step explanation:

x = 35° (opposite agles)

y = 180 - 35 - 75

y = 70

-----------------------

check 35 + 75 + 70 = 180°

the answer is good

7 0
3 years ago
Please answer quickly and show your work thank you :)
DiKsa [7]
I think what you had was correct if you are talking about 17
6 0
4 years ago
What is the value of y?
Ad libitum [116K]

Because this is a triangle, all three angles put together equals 180 degrees.

We can add the angles together and set them equal to 180 to solve for the value of y.

y + y - 12 + 56 = 180

Combine like terms.

2y + 44 = 180

Subtract 44 from both sides.

2y = 136

Divide both sides by 2.

y = 68

<u>The value of y is equal to 68 degrees.</u>

7 0
3 years ago
Give an example of a polynomial that is a perfect square. How do you know that it is a perfect square? Give its factored form.
lora16 [44]

Answer:

Step-by-step explanation:

A polynomial is a  perfect square if has the form:

a^2+2ab+b^2

Its factored form is  (a+b)^2.

We can obtain examples by taking any value of a and b.

For example:

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Thus we obtain a polynomial that is a perfect square:

x^2+2(x)(2y)+(2y)^2=x^2+4xy+4y^2

8 0
3 years ago
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iren2701 [21]
x=2,\:x=-6,\:x=-2+i\frac{\sqrt{59}}{2},\:x=-2-i\frac{\sqrt{59}}{2}

This is the solution to your equation.
7 0
3 years ago
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